D defs.my
Entry 2 senses Webster, 1913

Probationer

/prōb-āsh'-ən-ẽr/ · Pro·ba·tion·er · IPA /pɹoʊˈbeɪʃənɚ/
01 n. One who is undergoing probation; one who is on trial; a novice.
  1. 1.
    One who is undergoing probation; one who is on trial; a novice.
    “While yet a young probationer, And candidate of heaven.” Dryden.
  2. 2.
    A student in divinity, who, having received certificates of good morals and qualifications from his university, is admitted to several trials by a presbytery, and, on acquitting himself well, is licensed to preach.[Scot.]